Detecting device for breaks or tears and for the end of the strip in a strip of any material during its advance

摘要

Device for detecting breaks or tears and the end of the strip in a strip of any material, during its travel, which device comprises, mounted in proximity of the strip and positioned in correspondence with any of its sections which one wishes to explore, and being actuated any time by actuating a push button or the like control member: feeler means apt to feel the material of the strip, so as to follow the changes of direction and/or the oscillations as the strip travels, to feel said material preferably in the sense opposite to the direction of travel of the strip with a push adjustable in function of the limit of the mechanical resistance of the material of the strip, and to penetrate into the tear; and means for detecting the tear and the end of the strip, actuated by such feeler means when the latter penetrate into the cut of the tear or when the end of the strip is reached, said detecting means being capable to be connected to usual control means, so as to transmit to said means the information relative to the occurring of the tear or to the end of the strip so that said control means may consequently control automatically, in due time and at full speed of the strip, the type of necessary intervention required on the strip.